SCIENTIFIC ABSTRACT MEDVEDEV, ZH, A. - MEDVEDEVA, A. M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001033310009-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: July 12, 2001
• Sequence Number: 9
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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USS~ /Microbiology. General Microbiology. F-1
Abs Jour: Referat.Zh.-Blol, No. 9, 1957, 354174
A uthor Medvedev, Zh.A.
Title Concerning the Nature of "Age" Changes in the
Proteins of a Yeast Culture
Orig Pub: Uch. Zap. Kharkovsk. un-ta, 1956, 68, 65-78
Abstract: Baker's yeast was bred on a synthetic medium with
the addition of radioactive Sotium Sulfate in
aerobic conditions. In 7 hrs. the cells separ-
ated from the medium, and the whole mass was div-
ided into three parts; the first was subjected to
autolysis; from the second protein was Isolated;
and the third part was placed in a fresh medlum
but without the radioactive sulfate. In 161 hours
of development the cells were subject to the same
treatment; autolysis and the isolation of protein.
Card 1/4'

USSR Aicrobiology. General Microbiology. P-1
Abs Jour: Referat,.Zh.-Biol., No. 9, 1957, 35474
It was established that the proteins of the 7-day
yeast culture were more stable than the 7-hour,
during the process of autolysts, on the ba3is of
other research not published in the given work,
the author c-nsiders that the difference In the
depth of autolysis depends not on changes of the
fermentive systems taking part in the autolysis
but on a change in the protein's structure in the
aging of the culture. A radiochromatographic
analysis of the 7-hour and 7-day protein shows
that the latter has a small excess of cysteine
and cystine In comparison with thmethionine. Full
trypsin and pepsin hydrolyzates were received from
the Isolated proteins. By means of calculation
the median dimensions of the peptic chains was
determined in the pepsin hydrolyzates which showed
C ard 2/4

USSR /44icrobiology. General Mfcrobiology. F-1
Abs Jour- Referat.Zh.-Biol., No. 9, 1957, 35474
equal for the 'young' protein 4.6, and for the
'old' 5.2 amino acid residue. If the hydroly-
zates of young and old proteins is used as the
only source of nitrogen for the cultivation of
the same yeast in the same synthetic medium,
then after 40 hours of the culture's growth diff-
erences were also discovered In the conduct of
protein in autolysis, i.e., the properties of
'age' were transmitted to the new culture with
the nourishing substances. This result" forced
the author to s--t ;Av n Teries of experiments
utilizing the method of ballasting (Francis,
Winnick, J. Biol. Chem., 1953, 202, 23) and the
method of Iuila (J. Exptl. Med., 1951, 93, 539)
for proof that yeast utilizes the polypeptides
C ard 3/4

USSR /Microbiology. General Microbiology. F-1
Abs Jour: Referat.Zh.-Biol., No. 9, 1957, 35474
of the hydrolyzate completely without segmenta-
tion or only with partial segmentation into amino
acids.
C ard 4A

MHDV.gDZV. Zh.A.
Some data on the utilization of paptidee in protein synthesis.
Biokhtmiia 21 ao.2.288-292 Mr-Ap '56. (MIRA 9:8)
1. Kafedra agronomicheakoy i biologichaskoy khimii Moskovskoy
sellskakhoz.vaystvennoy akademii im. K.A.Timiryanva.
(PROTICINS. metabolism,
biosynthesis by plants & fungi, utilization of peptides
(Rus))
(PEPTIMS. metabolism,
biosynthesis of proteins in plants & fungi (Rua))

USSR/General Biology - Physical and Chemical Biology. 3-1
Abs Jour Ref Zhur - Biol., No 5, 1958, 18965
Author Medvedev, M.A.
Inst
Title Two Forms of Protein Ojelf-Renewai..
Orig Pub Biokhimiya, 1956, 21, No 5, 627-0-32
Abstract The nuestion of self-reproduction of the protein molecule
is critically discussed. The possibility is noted of pos-
sible errors in methods because of non-sterile experimen-
tal conditions and the presence of a denaturation factor.
According to the author, the addition of aminoacids to
reactive groups cf the protein molecule may simulate Dro-
tein renewal only externally, but such is not the fact.
The author considers that no "renewai" of extra-cellular
and reserve nroteins takes place without disintegration
or that it occurs to a very limiTed deUee, and "self-me-
tabolism" of proteins is not proven.
Card i/1

---:1-14- -U-V

lE, DVED-:,:,!,', Zli. A.
"A nem ~nethod of autoradiography ;'Or investigatinG thee localization and
rate of s~mthcsis of proteins and micleic acllr3 ii-, plants," a papcr oulurlitt(2i
at the International Conferc-cf-, or. Ir. ~;cicntific *:Icseur6,,, l'urls,
-20 SOP 57.
41

I
USSR/Plant ?hysiolory Respiration owv~ jio~aboliun,
Abs Jour 1"of liur Biol., No 2~, 1553, lo4327
Author~_
Inst Tirairya-ev A(~ricultural .,cac~cmy.
Title Stukly of the Synthesis anc~ I--.)ssible translocatiin
Taz Iroteins in tho Coat:.ictinG System of Plant~;
_;(;od I
Maanv, o' .' a New Method - Zic !Ircparative
of Leaf Trapressions on Filter Paper.
Orig Pub Izv. Timiryazevsk. S.-Mi. No 3, 186-2o6,
Abstract Examination of the problem of the possibility of th-,
location of the hi~,,hly act-~.vc soluble proteins for:u--,
tlic roots throu0i tho system (eapeciall-* -a
I-L100m) to the oroans. This stv-,' WIS
bas& on an especially method of the preparai-Av,;
raeioauto&caphy of Ica.- i..gro-,sions on filter
Card 1/2

.
AUTHORt Madvedev, Zh.A., Candidate of Biological Sciences 25-7-4/51
TITLE: The Meeting in Moscow Will Bring Us Nearer to Each Otner
(Vatrecha v Moskva ablizit nas)
PERIODICALt Nauka i Zhiznl, 1957, # 7, P 3 (USSR)
ABSTRACTt The author, a young biologist, who is studying the exchange of
proteins and nucleic acids by means of radioactive isotopes,
points out that important scientific problems can only be solved
when scientists of the whole world are ready to join their
skills and experience. He says that wherever a biologist may
live, if he has made a discovery or written a book, all biolorg-
iota in the world will be grateful to him, since their object-
ives are everywhere the same.
The article contains one photo.
AVAILABLE: Library of Congress
Card 1/1

i-\ ~_ AV (-'A e_~)Z h, A
USSR/Plant Physiology - Respiration and Metabolism.
Abs Jour Ref Zhur - Biol., No 18, 1958, 31988
Adthor Medvedev, Zh.A.
I-Ist Agricultural Acaderay In. K.A. Timiryazev
Title New Meth3d of Plant Radioautography
Orig Pub Prir-ida, 1957, No 8, 90-92
Abstract Leaves of plants cDiitaini:ig radioactive substances are
put between sheets of filter paper and inserted between
two steel bars. They are placed iii a press and subjec-
ted to a pressure 3f 150-200 atm. Albumins remaii, on
the impressions if the leaves after treatment by trich-
loroacetic acid. This permits the discovering of the lo-
calizatij.i if marked albwains in the leaf. Albumiiis, imr-
ked with s35, are localized alon& the principal vei.is of
the leaf, This shows, according to the author,
Card 1/2
- 12 -

USSR/Plant Physiology Respiration and Metabolism.
Abs Jour Ref Zhur Biol,, No 18, 1958, 81988
the m3tion of soluble albumins, synthesized in the
r3ot, This method is aot suitable for studying plants
which have a thick cuticle. The experiment was carried
out at the Timiryazev agricultural academy. -- L.D.
Prussakova
Card 2/2

USSR/Plant Fhysiolo~W Mineral Nutrition.
Abs Jour : -',of Jaur Biol., No 2~1, 1953, io4363
Author : ;Icdvedev, Zh.A., Lin Vin~~-anL, and Wu Chun
TnL t : AC;ricultural Academy imen-f. Timiryazev
Title : Otudies of Plant Metabolism by the Tagged Atom Met-hoC.
Orig Pub : Priroda, No 10, 97-98, 1957.
Abstract : In the Agricultural Academy iniani Timiryazev there were
studied the processes of the utilization of reservo oced
substances during the -,ormination, and the reutilization
of these substances in the sulas-equent growth of plau"s.
The bean was grown in a nutrient medium containini3 inorLa-
1lic S35 in the quantity oLl' I curie per container. tadioac-
tivo acedu ware garrainatocl W a nutrient medium not conLai-
ning SM. The distribution of radioactivity was determined
Card 1/2 durinS various periods of plant- ontogenesis. Durin3 the
- 11 -

USSR/P-'al-.c Physiology Respirati6m and Metabolism.
Ab s Jou r Ref Zhur Biol., No 18, 1958, 8198'r
Author Medvedev, a..A.
Inst Academy of Agriculture im. K.A. Timiryazev
Ttilc The Utilization of Radioactive Phosphorus for Quantitati-
ve Determination of the Content of Nucleic Acids in Va--
rious Intercelluar Leave Fractions.
Orig P-ib Dokl. Mosk. s.-kh. akad. im. K.A. Timiryazeva, 1957, vYp-
29, 55-60
Abstract The method of quantitative deterrxination of P compounds
which takes into accou,it the radi,,)active emn;mtion of
P32 in certain planta ;ias bee,i tested. These plants were
grow,,,. in a nutritious nixture with co:istant radioactivity
of p32. In cytoplasmic preparations derived from sunflo-
wer leaves, - 95% of the radioactivity comes f rom PW,
Card 1/2

USSR/Plaat Physiology Respiration and Metabolism.
Abs Jour Ref Zhur Biol., No 13, 1953, 31937
,- 4-5% of the radioactivity eimnates frora phisphopro-
teins and from DHk. A new sensitive Liethod of determi-
nation of nucleic acids is based Du a radioautoEprapliic
study of leaves containing P32 after eliminatio~i of all
forms of P, with the exception of nucleic acids. The
leaf imprints, representing the inner content of leaves
were pressed into filter paper under a pressure of 150-
200 atm. Then, lipides aad solubles of P in acid furn
were washed away, and the imprints were used f~)r radio-
autography. -- L.K. Polishchuk
Card 2,12

TJSSR/Plant Phy-,iolo,,y Mineral Nutr---~*i:)a.
Abs Jour :et' hui- Biol.) No 2", 104362
Author Medic-dev, Zh.A.
jk,
Inst A,~,ricul ura.1 Academy iiacai T.i-.L-,-yazev
Title '-;Ile Content of Methioni7--c~, Cy-,*U-.Jre and Common
the Proteins of Vario,,iq L,,,racellular Fractions
and Sunflower Leaves -,_-i ;,Llation to the Age of ?-Ia-
L)
Arig Pub Biokhimiya, 22, No 5, 055-064, 1957.
Abstract The dynardes of the co.it2n, o-1- ', and thiocasbamic ckc-c.--,
(met~iionine and cy,3t.Lii,:) wa:; irnrcstigated in prepara-,`.J-~:.-~2
0-. proteins from pleri'l- lLa-f2-- (sunflover Chernyai-,~-.-, 1?.
an6 ruuvier bean sax) a sand culture on a
iaj.xt,.Lrc with a stab12 arc,~-ual ratio of radioactive and
b1c isotopes of' S. wore separetely isolwt'-1,2~
from th-, vacuolar sap anC- va:;cljlar strand6, plasr.
Card 1/3

USSR/Plant PhysioloL;~r Mineral Nutri',.s.o;..
Abs Jour Rei' Biol., No 2-1, 1)53, 1o4362
r)l,ls and cystopla--i--c -,'L,.-lactures. The S cor wa 3
according to --adloactivity of pro- 'c- --'Is " aad
~hc amino acid conton'C 'hydrolysis), by 010'~ai,ILI~
~)apci- chromatograms ane,- thci:--,vpon determinin- th,:
.'ivi6 of the stains o..' the corresponding amino
"lie L I
maxinum S content, also preponderance o - c- -
U1-
o7er methionine, was C-',3-playcd by the proteins oil -".c
Dlasm fluid. In the b,~an proteins., the S content '-ccreased
clura.YIG the flowerin.- per-oe anC- increased durin-- thk2 Dcriod
of the maturation of poCs: during that periods
nine content had also sonc-,r'iat increased. In tuac -',~i,:lower,
the 3 content increased durin,-, the flowering per-'o'~.
During that period, .4-'U-9 and methionine was
higher in the leaves cj~ ti-, lower tiers than in jD',!i-,er
leaves. It was show-.i L.!,.a'~'- tlic plants are capable o,
,ailatin,-., from the -air ,-,.l-Ur ~.ioxide which is u-'~-
11 metabolism on par wish the sulfates admitted froi-.i w11--,
Card 2/3
- 10 -

USSR/Plant Phy-.iology - Mineral Nut~-izl~--~)n. I.
Abs Jour : ~Zef 9-hur - Biol., No 2,--', 195~j, 1o4362
-,oil. The study was iii the Agriculturai Acsx'c~my
ilicni Timirynzev. -- L.7. 'Dmanova.
.01
Card 3/3

r. V,
KZDVIIDW, Zh.A., kand. biol. nauk.
A now mthod for raioautography of plants. Pr1roda 46 no.8-.90-92
Ag '57. (KIRA 10:9)
1. Moskovskaya sel'skokhozyayetvonnava akademiya Im. IC.A. Timirwiseva.
(Fhotography of plants) (Autoradiography)

26-10-18/44
AUTHOR: 1(edvedevq.Zh.A*y Candidate of Biological Sciences, Lint Tin-an'
and U Tszyunt
TITLE: The Study of Vetabolism in Plants with the Aid of Marked &tons
(Izucheniye obnena, veshchestv rasteniy metedom mechanykh atomov)

PERIODICAL: Priroda, 1957,,No 10, pp 97-98 (USSR)
ABSTRACT: The process of manifold utilization of compounds in biologic-
al syntheses - their re-utilization - is an interesting
physiological phenomenon which can be successfully atudied by
applying the method of mark . The author used radio-
atons
:5
5
) on "kidney" bean plants which
active isotopes of sulfur (
were raised in pots. The marked seeds harvested from these
plants were sown in pots containing nourishing mixtures with-
out radioactive substances. Samples of plants, for measuring
their radioactivity, were taken 5 times during the vegetation
period. Radioactivity of the sulfur was determined separately
in the leaves, reproductive organs# stalks and the root
system. The results obtained ohowed a whole range of regular-
ities regarding the distribution of radioactive substances
Card 1/2 originating from the seeds. In the initial stage of develop-

2 0- 2 - 4 Cl;'Sr_
AUTHOR: bbdvedev , Zh. A.
t_t 35
TITLEt Distribution of Su o ances, Marked by 3 # of Phaseolus
vulgaris in the Proteins and Organs of' Plants of a New Pro-
geny, Observed Throughout Its Period of Development
(Raspredeleniye mecheDnYkh s35 veshchestv semyan fasoli v
belkakh i organakh rasteniy novogo pokoleniy*techeniye vsego
periods. ikh razvitiya)
PERIODICAL: Doklady Akademii Nauk SSSR, 1957, Vol. 114, Nr 2, PP.379-382
(USSR)
ABSTRACT:The normal analytical methods are not suffirient in order to clari-
fy the fate of the reserve nutritive substances of seeds 'i.e.
to determine whether they are redistributed among the new
leaves and the reproductive organs, or whether they remain in
the same organs for the growth of which they were used at
the germination. It is furthermore of interest which part of
the initial proteins of the seeds is concentrated in the seeds
of the new progeny. This investiAation was carried out with
Card 1/4 the aid of the method of marked seeds., the parent plants of

35 20-2-40/60
Distribution of Substances, Marked by S , of Phaseolus vulgaris in the
Proteins and Organs of Plants of a New Progeny, Observed Throughout Its
Period of Development
which had been grown on a nutritive substratum with the one
or the other radioactive isotope, whereas the plants them-
selves were brought up on a normal nutritive substratum not
containing radioactive elements. For the purpose of these
experiments, radioactive sulphur was used, because it has a
period of half life that roughly corresponds to the period
of vegetation of one-year old plants. Phaseolus vulgaris was
used in these experiments. The results obtained permit to
draw the following conclusions with respect to the inter-
-organic exch&nge of sulphurous compounds in plantst If
marked sulphates and methionins are absorbed through the
roots, they accumulate mainly in the young growing leaves.
The radioactive substances of the seeds are used up during
the first period of growth, when the first small leaves,
roots and stems are the young growing organs. The main mass
of the radioactive sulphur is concentrated in them. The
next stages of the growth of the leaves take place at the
expense of the nutritive substratum and of the discharge
Card 2/4 of the marked substances of the first group. '2he constant

35 20-2-40/60
Distribution of Substances, Marked by S , of Phaacoluo vulgariB in the
Proteins and Organs of Plants of a New Progeny, Observed Throughout Its
Period of Development
are 2 figures, 2 tables, and 6 refercnces , 5 of which az%--
soviit-
ASSOCIATION: Moscow Agricultural Academy imeni K. A. Timiryazev
(Moskovskaya ml' skakhozyaystvennaya akademiya im. K. A.
Timiryazeva)
PRESENTED- March 4, 1957, by A. I. Oparin, Member of the Academy
SUBMITTEDt March 1, 1957
AVAILABLE: Library of Congress
Card 4/4

20-1070-- 37/54
AUMOR: -Iledvedev, Zh. A.
TITLE, An Auto radi o6raphic a 1 Investieution of the Phenomena of
s35-methionine Adsorption bi the Zytoplasin Proteins of the
Leaves of Some Plants (Radioavtograficheskoye izucheniye yavleniy
adsorbtsii s35-metionina belkami tsitoplazmy liot'yev ryada raste-
niy)
PERIODICALs Doklady AN SSSR, 1957, Vol. 117, 11-Ir 5, PP- 660 - 863 (USSR)
ABSTRACT: In recent times the question was mach discwed whether the in-
'
5
and C in isolated proteins
Labelled by S
clusion of amino acids
and in some protein systems represents a synthesis and selfrenewal
of the protein or, however, this inclusion is a non-3pecilic and
adsorption-like process and does not represent a biological oon-
version form. The right exploitation of the experimental results
is complicated by the fact that there can scarcely be found a con-
trol for the untreated protein forms. This should be an inactivated
protein, with which, however, an age,-rogation and colloidal salt
precipitation is connected, and thus a sudden-alteratior of the
adsorption surface. The author succeeded in avoiding the visible
coagulation phenomena and the precipitation of protein structures
Card 1/4 durin.- the denaturation. This was carried out by weans of a sudden

20-aV-5- 37/54
An Autoradiographical InVe3tigation of the Phewmena of the S35-14ethi-
onine Adsorption by the Zjtopl;Aam Proteins o. tne Lea,,~_j o.L :)orau Plants
hi:,Il pre_:sure (.`ore than 200 at:~01 or a stro.-ce (approximatively
50 kg/cm2) on the leaves enclosed in several layers of chrot,,iato-
E;raphic filter paper (6ictures of these imprints figure 1). Here
the leaf zytoplas--i is imprinted into the paper as a whole, to.-eth-
er with plastides, cores, and other components. However, one did
not succeed in finding the observation conditions for synthetic
processea in 3in,r-le plants (with the exception of lime tree). ,By
chance, however, the orate-in3 Of the con trol- Pnd expe rimental
variantj turned out to adsort a part of thu s35 methionine (o'l -
- 0,8 ~~O). .h(- leaf imprints of beans, Aristolochia clematitis ,
lirde tree, and Sanguisorba canadensis were spattered with a 0,29
bf - Glucose Zolt4tion which contained in 100 ml 1 m Cu of S35-methi-
onine and phosphate buffer with pIq 6,8. The imprints were then
3pattered with trichloroacetic acid and all soluble compounds were
carefully washed out. Table 1 gives the average values of the 3ur-
f
face radioactivity of the iLiprints. From a part of the imprints
(on radio-film X-5) autoradiographs were produced (figure 1, 2).
The obtained results cannot yet prove that 'the leaf imprints are
useless for the one or the other synthetic processes in vitro. How-
ever, the pos-:ible influence of the inhibitors o~ the protein
Card 2/4 synthesis has to be taken into account. By comparison of the

20-la7-5- 37/54 55_ble thi -
An Autoradiographical Investigation of the Phenomena of 3
onine Adsorption by the Zytoplasm Proteins oi the Leaves of iome Plants
weight of the laaf imprint to an equal piece of clean paper the
weight of the protein concentration in the protoplasm of single
leaves was detected. The differences of the surface radioactivity
of youn,~ und ola bean leaves are connected with differences in age
of the adsorption power of the proteins. The results prove that in
every case the relation between the real insertion of the met~ion-
ine in the protein synthesis and the non-specific binding by cell
structures should be taken into consideration. Here it is important
that the repeated precipitation used for the protein cleaning is
only to a small extent effective against joint sulphoamino acids.
The described imprint method can also be used for experimental
purposes. An adsorption of radioactive compounds by leaf imprints
was found aloo durin6 their treatuent by sodium phosphate labelled
with p32. In contrast to this labelled sulpbates can be easily
and aliaost completply removed froi-ii the imprints by means of com-
mon waskin,,,. 2here are 2 fi,,,-ures, 1 table, and 10 references, all
of which are Slavic.
Card 3/4

20-117- 5 - 37/ *54
Phenomena of 35-
An AutoradioCruphic--:Ll Inv.---ut4gation of t11( 3 1~ethi-
onine Ad3orption by thu Zytopl--sf:i Proteins oi -.au jeaves of So,-.ie Plants
ASSOCIATION: Agricultural Acade.-ay imeni K. A. Timiryazev, M03COVI
(:doskov31capi sell sko'khozyaystvennaya akadeniiya im. K. A. Timirya-
zeva)
PRESENTED:
SU1,1ITTED:
JulY 91 1957, bj A, I. Oparin, Acade:.,iician
J V l.,' 0 , 19 ') 7
Card 4/4

VACHKOVSKIY, V.R,, akaAemik, otvatstvenmyy red.; AHMPOV-KARMIN, IeN..
aka,dead1c, otvetstvermyy red.; HICHIPMOVICH, A.~Ae, doktor bial.
nauk, otvetstvaumy red.; k#A*V-k%nd. b1ol. nauk, red,;
OGOWMSO Ta.G., red.; POLTAXOT, Th.A., kand. gel 19'kokhozMatv9n9--
nykh neak, red,; SMOT# G.T., red..; SHMMOV,*V&Ao, kand. sel'sko-
khozMatyennyth nank, red.; SHAROVATOVA, I.B.. red. izd-va.
[Physiolog7 of plants. Agricultural chemistry, Soil science;
proceedings of the Conference on the Use of Radioactive and Stable
Isotopes and Radiation In the Ektional ZoonozV and in Soience]
Tiziologila rastenii,, AgroWmila. Pbehyowedente; truAy
V'nesoluznoi nauchno-takhnicheskoi konferentall po prImenenitu radio-
akt1va7kh I stabillrO& Iaotopov I ialuchenii v narodnon khoziaistve
I nauka. Moskva, lzd-vo Almd. nauk SSSR, 19F58. 436 p. (NIRA, 11:6)
.1. Veenoymnays, -uchno-tekhnIcbea1pqa konferentsiya po primenenlyu
radioaktiTnykh I stabilln7kh lootopor I islucheniy v naraduou
khowaystva I naulm, 1957. 2. Tsesoymxnaya akademiya sel'sko-
khozyaysWennykh nank In. 7.1, Ienina (for Klechkovskiy).
3. Akademiya nauk Tadshikokoy SSR (for Antipov-Karatayev),
(Botazky-Ax~alology) (Agricultural chemistry) (Soils)

MBr)VM-VV, Zh. A., kand. biol. nauk; ZABOIWSKIY, U.N., aspirant
Application of electrophorests sad outpradlograpby for studying
the nuclaotide composition and phosphorus notabolism of nuclaic
acids in various organs of the bean [with summary in English].
Izv. TSKhA no. 3:207-214 158. (MIRA 11:7)
(Beans)
(Ruclentides)
(r-hogphorus metabolism)

'.[M;VTIDI-,T,, knnd.1-AnI.nauk
Using leaf imprints on filter paper for rapid m'.crndetiMir.;-tIqn
of amino nitrogen in plants. Izv. TSKhA no.4:115-1120 158.
MHA 11:10)
(Plants-ChemicnI analy!iis) (Nitrogen)

ICPVMW. 2h.A~
Past determination of the radioactivity of proteins and the ratio
of various fractions of radioactive substances in plant leaves [with
summary in Ingplish]. Biokhimiia 23 n00'6:801-808 V-D 158 (MIRA 11:12)
1. Kafedra agronomicheskoy i biologicheskoy khimii Moskovskoy
sel'Bkokhozynystvennoy akademil Imeni, K.A. Timiryazevas'
(RADIOACTIVE TRACERS)
(PLANTS-METABOLISK)
(PROTEINS)

KOWMV. Zh.A:. -::-.-,...-t~
I"-,; ~n-
. --.. '. Tripression of leaves on filter paper as a now form of botanical
docunantation. Not. thur. 43 no.i:6i-63 ja 0. (mrgA 11:2)
1. Moskovskaya sel'skokhozyaqstvenuaya, akadenlya Im,. X.A. Timirvazeva.
(leaves) (Botanical research)

26-58-2-12/48
AUTHOR: Medvedev. Zh.A, Candidate of Biological Sciences
TITLE: Radio Isotopes in Scientific Experiments (Radioizotopy v
nauchnom eksperimente) At the International Conference in
Paris (Na mezhdunarodnoy konferentsii v Parizhe)
PERIODICAL: Priroda, 1958, q1r 2, pp 63-66 (USSR)
A.BSTRACT: At the International Conference on the Use of Radio Isotopes in
Scientific Experiments, convened by the General Council of the
UNESCO from 9-20 September, 1957, 225 reports were read, 49 of
which were from the USSR. A.V. Palladin, M.I. Prokhorova,
Z.N. Tupikova, G.Ye. Vladimirov, and Ye.M. Kreps read reports
on the metabolism of the brain and nervous system. V.M. Klech-
kovskiy and I.V. Gulyakin d6alt with the behavior of micro-
quantities of the radioactive isotopes of strontium, cesium,
ruthenium and zirconium in the soil and showed that plants are
able to assimilate these elements into the make up of their
tissues, thereby introducing them in-Go the food of animals or
man. A.A. Nichiporovich dealt with the problems of photo-
synthesis. A.L. Kursanov presented experimental data on the
Card 1/2 important role played by the root system in the processing and

26-58-2-12148
Radio Isotopes in Scientific Experiments. At the International Conference
in Paris
transforming of nitrous sul-stances and organic acids and of
the specific role of the roots in controlling the plant's meta-
bolism.
ASSOCIATION: Moskovskaya sellskokhozyaystvennaya akedemiya imeni K.A. Ti-
miryazeva (Moscow Agricultural Acsdemy imeni K.A. Timiryazev)
Card 2/2 1. Scientific research 2. Radio isotopes--Applications

MOMEV, Zh.A.. starshly nauchW7 sotrudnik, lcand.blol.nauk
Modern conceptions on protein sy-athesis in plants. I2v.TSM%k
no.2:57-74 159. (MI FA 12: 8)
(Proteins) (Plants-Assiallation)

z
4 Kw%A kand.btolag.nauk; ZABOWTSKIY. N.N., assistent
Simple accelerated notbod for determining the effect of radia-
tion fron ra4loactive Isotopes on the synthesis of lipids and
nuclaic acids in plants. Izv.TSKhA no-3:181-192 159.
11%, (MIRA 12:10)
(Liplds) (Nucleld acid;) (Plants, Effect of radioactivity on)

MOVEM, M.A.
Peptide utilization in protein biosynthesis [with summary in English].
Biokhimlia 24 no.1:94-100 Ja-F 159. (MIRA 12:4)
i
1. Department of Agronomical and Biological Che-Astr7, Agricultural
Academy, Moscow.
(PROTBINS. metab.
biosyntheais from peptides (Rua))
(POTIDRS, metab.
protein biosyntheale from peptides (Rua))

KOVEDEV, Zh.A.; SHNHI TSZYAN-SYA [Sh5n Oblang-haial
Some data on the d.1namice, localization and metabolism of
peptides In plant leaves. Bioldlimija 24 no.4:709-716
Jl-Ag '59. OGRA 12:11)
1. Kafedra agTonomllcheskoy t biologicheakoy khimii Sel'skokhoz-
yv,vstvannoy akademi-1 im. K.A.Timiryazeva, Hoskva.
(PM7IDES)
(PIANTS-MET&BOLISM)

MVEDEV. Zh.A. (Moskva)
Biological functions of the peptide fraction of tisouas and organs.
Uup.sovr.biol. 47 no.1:3-18 Ja-F 159. (MIRA 12:2)
(PEPTIDES, metabolism,
in protein synthesis, review (Rus))
(PROPEINS. metab.
bioeynthesis. funct. of peptides, review (Rua))

17(3) SOV/26-59-2-22//53
AUTHOR: Medvedev, Zh.A., Candidate of Biological Sciences
TITLE: The Localization of the Synthesis of Amino Acids in
Leaves of Plants (Lokalizatsiya sinteza aminokislot
v listlyakh rasteniy)
4~
PERIODICAL: Priroda, 1959,)Nr 2, pp 93-95 (USbR)
ABSTRACT: The author describes a simple method for the observa-
tion of amino acidic metabolism in plants. Imprints
of leaves to be examined are made under pressure on
filter paper, then decolorized with acetone, which
takes away the color but leaves free amino acids and
other soluble substances. These imprints are then
covered with a solution of ninhydrin, which 'gives a
characteristic colorometric reaction with amino acids
and other nitrous components of the cell. The inten-
sity of this reaction indicates the concentration
of these acids on tne imprints. It was also proved
Card 112 by these experiments that the amino acidp penetrRte

SOV/26-59-2-22/r~3
The Localization of the byrthesis of Amino Acids in Leaves of
Plants
inside of the leaf even when applied on the surface
of the leaf. There are 1 photograph and 4 Soviet
referencee.
ASSOCIATION: Moskovskaya sellskokhozyaystvennaya akademiya im.
K.A. Timiryazeva (Moscow Agricultural Academy imeni
K.A. Timiryazev)
Card 2/2

MEDVEDEV, Zh. A., Doc Biol Sci -- (diss) "Biological synthesis of pro-
teins and some problems of ontogenesis." Moscow, 1960. 46 pp; (Academy
of Sciences USSR, Inst of Biochemistry im A. N. Bakh); 180 copies;
rice not given; list of author's works on pp 44-46 (51 entries);
L, 17-60, 145)
U

RACHINSKIT, T.Y., doktor khim.nauk, red.; TAGLOTA, L.G.; KAKULI, Ta.T.;
MOYMW* Zh*A*
[Practical work in the use of isotopes and radiations in
agricultural Praktikum po primenaniiu izotopov i izluchenii
v sellakom khozisistva. Pod obahchei red. B.T.Rachinakogo.
Koskva. Kook.sellkhoz.akad. Ho.6. [Use of labeled atoms in
plant physiology and biochemistry) Primonenie metoda machanykh
atomov v fiziologii i biokhimii restanii. 196o. iol p.
(KIRA 14:1)
(Radioactive tracers)
(Plant physiology--Research)

MEDVEDEV, Zh.A. (Moslwa)
Role of soluble ribonucloic acid in intermediate reactions of protein
synthesis and its relation to enzymatic oystems of aj#no acid activation.
Usp. soov,. biol. no.2:.121-135 S-C 160. (2FA 13.11)
1
XCLEIC ACIDS) (PROTEIN METABOLISM)

MEDVEDEVI h,,A.; ZABOLOTSKIY, N.N.; SH1211 TSZYAII'-SYA [Sh^n Chien-hsia];
- 8
MU 51-14U [MO 11si-M); DAVIDOVA, Ye.G.; DAVIDOV, Ye.R.
Isolation of ribonucleic acid from the plasm sap of plant leaves
and studies on the nature of its metabolism. Biokhimiia 25 no.6:
1001-103-1 N-D 160. (MIRA 14- 5)
1. Chair of Agronomic and Biological Chemistry, Agricultural
Academy, Moscow.
(NUCUIC ACIDS) (PLANTS-ZIETABOLISM)

'-EV%'EDT;V, ZH. A. A. ~~. (usbil)
-----------
ItA stuc~v of Cort~ In Fc- ~',le-nuclc~ ti,:e Gom, cum; 4n Cro~-s -,-,d t ,'r
'ble role -n tri, ST.:tn~,-is of A11;7,mlii.~."
poss
. -crt cn~s,~nLed at Cie Ccn:-vu.z3, ::c).-c
Rei
1;2-1h A 15;61

DEV, Zh - A
D VE,
E
C 0 t r-j": Bulgaria (Translated ffrom t1ae Russian)
a Lv~-!~r~ez -. ?,Iinner o-f the 1959 I,Tobel Prize in .-i1edic-ine
Candidate for Biolo~ical Sciences,
41
A f I !,~ t I not indicated
S0-JL:iap Biologiva i Khirniva, ITO 2, 1961, pp 19-22
.a: "Tmward the Artificial Synthetizing off ?rotein."

IGMVZM-, Sh.As kand.biologichookikh nauk
Reproduction and transfer of information in the aynthesis of
biological: macrmoldnass. Zhur.MMO 6 no.3:268--275 161.
~A -.;T (MBA 14:6)
(Biosynthesis) (Kacrcmolsoul~r compounds)

NEDVEDEV, Zh.A.
----------- ;,-~
Some data on the interaction soluble ribonucleic acid of the plasm
sap of leaves and intracellular strudtures. Biofizika 6 no.3r279-
283 161. (KLRA 14: 6)
1. Moskovskayra ordena Lenina sel'skokhozyaystvennaya akademiya
(NUCLEIC ACIDS) (PLANT CELLS AND TISSUES)

(.MEMi DRVp Zh.A.9 kand.biol.nauk (Moskva)
Science of aging and longevity. Priroda 50 no. 3:71-72 Mr 161.
(141HA 14:2)
(Old age)

MEDVP~W Zh.A. (Moskva)
lr--
Aging pf the organiam at the molecular level.
no.3s299-316 MY-To 161e
(AGING) (PR Mln~ METABOLISM)
Usp.ooVr..biol. 51
(M1RA .14:6)

MEDVEDEV, M.A., kand.biologicheskikh nauk; KRAVKIN, E.Ye., aspirant
Nucleotids peptides, a now group of biologically important
compounds* Izv. TSMJIA no,2:188-199 162. (MIRA 15:9)
1. Vostochno-Sibirskiy biologicheskiy institut Sibirskogo
otdeleniya AN SSSR (for Khavkin).
(Nucleotides) (Peptides)

KWMEV, Zh.A.
Theoretical problems of the molecular level of aging. Trudy
VLIF.Otd.biol.6:84~91:62. (MIRA 16:7)
1. The Moscow Agricultural Academy named K.A.Timiryazev.
(AGING) (BIOCHEMISTRY)

l.'~l.~DVI-I)LV,,ZfA.,E~tedvede~(,Zh. A.]
Aging of organism on the molecular level. Analele biol 1~1 i-
t, u
112-132 Ja-F 162

- KMVEDEV, Zh.A., kand.biolog.rlailk
New method of protein electrophoresis. Friroda 51 no-5.102--101+
My 162. (MIRA 15:5)
1. Moskovskaya sellskokhozyaystvennaya akad miya im. K-4.
Timiryazeva.
(Paper electrophoresis) (Proteins)

MD1 DEV, Zh. A.
Nonsensical Chaotic Slow Continuation of Morphogene-sis as Contribution
to process of Ageing.
Gerontalogy2 6th International Congress, CopenhaE;en, Denmark
1i-16 August 1963

MEDMEV, Zh.A..(Moskva)
"Elrrors" in the reproduction cf nucle'-c Ficida rpd prote-Ins a.-id their
biological significanre. F-obl. k1b. nc,.9424.-L-264 163. (M-TRA 17t'LO)

MEDVEDEV,,,Z-h:A., kand. biologicheskikh nauk
I - - ... .- , - '. , -~ -~~ ..
Molecular mechanisms of the ontogenesis and the problem of
cancer, Zhur. VKHO 8 no.4084-394 163. (MIRA 16:10)
(CANCER RESEtRCH) (MOLECULAR BIOIDGY)

KHAVKIN, E.Ye.; lr!,DVCDF,'V, ai.A.
Effect of c-tJ.-''vi r, and adenosi.r,,,--, ~rip.,,osphate on the inclusion of
C14 tyrosine into the proteins (,., ieaf rhloroplasts of beans. Dokl.
AN SSSR 150 no.6gI385-1388 Je 163. (MIRA 16:8)
1. Moskovskaya sellskokhozyaystuvennaia a-kademiya im. K.A.Timiryazeva
i Vostochno-Sibirskiy biclogicheskij -institut 31birskogo otdeleniya
AN ~',SSR. Preadstavleno akademdk.-m A.-',.r-rDarin.YM.
(PROTEP: I-T-TABOLISM) MANTS, L~!-*--~:C -F LIGHT ON)
(ADFNOSINE TqIPHc~,'-IFHA7) (TYROSINE)

MEREZHINSKIY, Mikhail Fedorovich; CHERKASOVA, Lidiya Semenavna~.
MEDVEDEV, Zh.A., red.
.I.-.-- I--- -1-1-1
[Fundamentals of clinical biochem-istryl Oanovy kllrdche-
skoi biokhimii. Moskva, Meditsina, 11.965. 358 P.
(M IRA 1?:

27 Q-66
-1 -7 ..~ 7
ACC.
ln:~ccded ar '-d deve o
pmen o
t1das irlplits; 6) mol4ctd 'gene c
Ins 'and'oui-61old itdl al in' davoloplmen~' -P*66isses
POO
ia UL..a m .1
n 8 Of Afffis,mr4titiitid (set, itive)
-or me ma
n marp. g4 &d~n -a Wri~ aro "olboWl whic ragu &t0&
0. ~Isquwtcs, iotd loialtatibft
77,,
T T 0 U6
B
K 9 of: notie. -77
-iJ
ti
4
4.14
77:,
wir-
Awo

AUTHOR: Medvedeva, A.
SOV/2-58-12-16/19
TITLE: A Meeting on FoDulation Statistics, Care of Public Health
and Culture at the Boards of Statistics of the Turkmen and
the Kazakh Soviet Socialist Republics (,'Joveshchaniye po
statistike naseleniya, zdravo-okhraneniya i kulltury v sta-
tisticheskikh upravleniyakh Turkmenskoy 'SR i Yazakhakoy
33R)
PERIODICAL: Vestnik statistiki, 1958, Nr 12, pp 76 - 77 (USSR)
ABSTRACT; In beptember and October 1958, the Boards of Statistics of
the Turkmen and Kazakh SSR held a conference on vital sta-
tistics, medical care and cultural development. Vie con-
ference stated among other things that the rOKistraticai of
causes of death is unsatisfactory, because death certifi-
cates are not issued by doctors, as it should be. Births
and deaths also are not registered quickly enough. The
conference laid down a progran to eliminate the existing
deficiencies.
Card 1/1

TARABCAK., M.; IEDVEDOVA, A.; HAVLIKOVA, M.; POSPISILOVA, M.
The microbiologic evaluation of wa"r flows in Eastern Slovakia
iron works region. Cesk. hyg. 10 no.7:417-424 Ag 165.
1. Krajoka hygienicko-epidemiologicka stanica, Kosice.

MEDVEDUA, A.A.
Distribution of paper and pulp industry in Eastern Siberia. Krat.-
soob. BKNII no.3:161-169 162. (MIRA 16:5)
(Siberia, Ras~ep-Faper industry)

OGTYEVSKLY, V.V.; 1,1EDUMEVA, A.A.
Effect of the development ,~f gras3 ~ovplr in the feli~4.ng~- of mixed,
reedgrass type on the growth of pine. -Lzv. S%lj AN Sf'-'~R no.8. Ser.
biol.-med.muk no,2:68-71 165. (,4rF-A 148:9)
1. Institut lesa i drevesiny S'LbLrskog:~ ctdelentya A14 S-SSR,
Krasnoyarsk.

IOFFE9 S.L.; TARTAKOYSKIY, V.A.; MEDVELEVA, A.A.; NOVIKOV, S.S.
Reduction of oximes with diborane solution in tetraLhydrofuran.
Izv. AN SSSR. Ser. khim. no.8tl537-1538 Ag t64.
(MIRA 17:9)
1. Institut organicheskoy khimii im. N.D. Zelinskogo AN SSSR.

MEDVEDEVA, A.F., assistent; DMITRIYEVI V.S., prof., nauelmyy
ru ovodite*l
L
Acute odontogenic osteomyelitis of the jaws. Vop. obshchei
stom. 17:57-59 '64.
Chronic odontogenic osteorRyelitis of the jaws. Ibid.:60-63
(MIRA 18:11)

ip,
ME 6

NEDVEDEVA, A. 1.
I A. "InvestigatLoris of t.-.e effec:, of trans-) i a:~firir- -
Medvedeva, I. J. -L-
treaterl tissuea, in conl.ract.,rr!s of :raxillae, acrlordinv ~.,) Krauze," -rwHv Ka z a r. L k
f~oa. mtomat.ol. in-,,a, lusun 2, 190, p. 161-166, - ~'~ D'enji
SO: Ti-52LO) 17 Dec. 53, (D!-r~o: .-*-s I Z:.arnal I rv... S*,ate: . Nlo. 2", 1)L,) ')' .

PANISYAK, V.I.. professor; MM)VED3VA, A.I.
Wick method for quantitative determination of sugar in lirine.
Lab.delo no-3:25 MY-Je '55. (~MIRA 8: 9)
( URI ITZ,
sugar, determ.)
(CAR90HYDRATES. in urine,
determ.)

MEDVEIEVA , A. I.
Role of an examination room in the prevention of gynecological diseases.
Zdrav. Ros. Feder. 6 no.4:26-28 Ap 162. (14L'A 15:4)
1. Iz zhenskoy konsulltatsii No-3 Verkbisetakogo rayona.
(MEDIGAL SCREENIFG) (G)OTECOLOGY)

143DVEDEVA. A.M.; ZIK&, G.G., zuvediqubhchiy.
Experiment of spraying buildings in Stalingrad Province with DDT inEtead
of I)ructicing larva control. Med.T)araz.i puraz.bol. no.2:133-135 14r-Api
'53- (MI.RA 6 : 6 )
1. Stalirigradskaya oblastnaya protivomalyariynaya atantsiyu.
(Stalingrad Province--Malarial ?ever--Prevention) (DDT (Insecti-
Cide)

MOVEDEVA, A. H.
Result of fly control in KirovDistrict. Stalingrad, during l9s5-1956.
Medeparazo i paraz.bol. 27 no.3:361 KV-Je '58 (MMA 11:7)
1. Is Stalingradskoy gorodskoy sanitarno-epidemiologicheskoy
stantaii.
(FLIES,
eradication in Russia (Rus))

1
e r rp o n,4.

-MENEDEVA. A.H. .
Spore-pollen cooplexes in lower horizons of the Tunguska series
and their stratigraphic importance. Trudy last. geol. i rasrab.
gor. iskop. 1:162-179 160. (mlRA 14.,l)
(Tanguska Valley--Geology, Stratigraphic)

YIEDYEDLVA, A.M,; MviIKOVA, I.K.
Protoleisophaeridium sorediforme Tim. and Fr. conglutinatum Tim.
from petroleums and rocks of the Volga-Ural region. DAL M4 SSS? '
139 no.2:461-462 Jl 161, (MIRA 14:7)
1. Predstavlenc, skademikom Yu.A. Orlovym.
(Volga-Ural regicn--Paleobotany)

CHEPIKOV, K.R.; MEUVEDVA, A.M.
Organic remains of ancient appearance in petroleums from Tertiary,
Mesozoic, and Paleozoic deposits. Dokl. AN SSSR 140 no.2:439-44-0
C 961.
(MIRA 14:9)
1. Institut reolo 'rii i razrabotki goryuchikh Iskopayemykh AN SSSR-
2. Chlen-korrespondent AIN SISSR (for Cbepikov).
(Petroleum ppology)

ARTAMDNOVA, S.V.-,-MEDVEDEVA, A.M.
Methods for the isolation of spores and pollens from oils and oil-
field waters. Paleont.zhur. no-1:157-158 '62. (MIRA 15:3)
1. Institut geologii i razrabotki goryuchikh iskopayemykh AN SSSR,
Moskva.
(Palynology) (Petroleum--Analysis)

CHEPIKCV, K.R.; MEDVEDEVA, A.M.
Recent data on organic microfossilB in 'the oils of the Ewrope-ar.
part of the U.S.S.R. Dokl. AN SM 153 no.2:444-446 N 163.
(MIRA 16:12)
1. lvhlen-korrespondent AN SSSR (for Chepikov).

Ivan
Yom, Ohm 9.~ z~

Z 7
_~~_donduo- Vitr1*40,
va ditim If -'-b 6M~
Will -'Inhibit- 'l-bS .461t, Ah
b 6l ~b
:Ld- or-.~ a ou strit
.,-th
h s
in
-fig= -s
e0 tint
ell
T i,
Ti
--AN
AY~ISSER- mo"wilustitate Of ~PlwqicaT,,Chemistry

54;
LL ".."4
XmI,
in

WV/81-59-9-33450
Translation from: Referativnyy zhurnal. Khimiya, 1959, Nr 9, P 562 (USSR)
AUTHORS: Kaluzhenina, K.F., Skuba, I.A., Zherebkov, S.K., Medvedeva, A.M.
V
TITLE: The Increase in the Adhesiveness of Rubbor Mixtures and Glues Based
on Synthetic Rubbers
PERIODICAL: Tr. N.-i. in-ta, rezin, prom-sti, 1956, Nr 3, pp 47 - 55
ABSTRACT: The possibilities of increasing the adhesiveness of/mixtures and glues
based on butadiene-styrene (BS), butadiene-nitrilelb (BN) rubbers and
glues based on neopreneO(N) by means of condensation resIns:
rubrezina, B (I), yarrezina, A (II), yarrezina B (III) have been studied.
The optimum dosis of these resins for raw mixtures of BS and BN is 10
weight parts per 100 weight parts of rubber. According to the capacity
of Increasing the adl,7-isiveness of the raw mixtures of BN, I, II, III are
equivalent. The incroduotion of these resins into the rubber mixture
Card 1/2 does not affect the physical-machanleal properties of the vulcanlzates.

SOV/81-59-9-33450
The Increase in the Adhesiveness of Rubber Mixtures and Glues Based on Synthetic
Rubbers
I, II and corezin, being introduced Into glues of BS and N,
fection adhesiveness considerably, as well as the stability
parts after vulcanization. The properties of the glues of
by the introduction of the resins Indicated.
increase their con-
of the adhesion of the
SKB rubber do not improve
B. Glagolev
Card 2/2

USSR/Chemistry of H-'Sh Mc)1ecular Subitan~,es. F
Abs jour Referat. Zhurial laii;~-iya, Ile 0', 1957, 19423.
Author B.V. Ver,,agin, ".K. z1erebkov
Ynst 41,
Iitle Concernin~~ the Part of Diffusion of Polymer Chniris
in the Mechanism cf Adhesion and Autohesion (Sticking
Together) of Rubbers.
Orig Pub Kollod. Zh. , 1~166, 13, Nc 4, i~o4-412
Abstr,ict With a view to stud,; ',h-2 influence of rel-Axaticn. or
diffusion urocesses cn a-atchesicn., the autohesion of
ELK and SKB was investi,uated, _isinl~ tne method of
crcssed quartz threads covered with rubber films
(K.ollo-id. zh. , 195C, 12, 431; RZhKhim, 1956, 32140),
It was shown that the energy -~f ~~utohesion sharply
incre,ased 2,n c.,,se of films from 0 to -above
0.5 thick, wi,.ich was ccnaected with the increase of
van der Waal's forces in tlie first cpse and with the
facill-tation of fcrmation of platforms at easily de-
2 , -S
'o
Card 1/3 j-12-

USSR/Chemistry of High Molecular Substances. F
Nos Jour Referat. Zhurnal Khimiya, rio 6. 1957, 19423.
formed thick films in the second case. In the thick-
ness internal from 0.1 to 0.5M, the autohesion
energy did not depend ca the Ms thickness. The in-
crease of the contact duration increased the autohesion
energy only if the film thicluiess was> 0.5At from
which it followed that the diffusion processes did
not play any part fn the autohesion of thin films.
During the study of the correlation of the combinabil-
ity of various rubhers and thair adhesion one to an-
other and autohesion, the measurement of the shear-
ing strength of rubber adhesion was carried out and
it was shown that in case of butyl rubber, the dif-
fusion processes did not play a great part and that
its adhesion strength was determined by the area of
the true contact depending on the mechanical proper-
ties and by the influence of forces connected with the
double electrical layer, which played an essential
part at the meaGurement of the work of tearing by the
method of' exfoliation. In case of NK, SKS-30; SKS-26,
Card 2/3 -13-
--- -------- -------- -- --------- - ------------ -- -

Ry'.-

66200
-5t4-)- Xr. 9j00j /57 a~29 SOV/69-21-5-10/23
AUTHORS: Deryagin, B.V., Zherebkov, S.K. and Medvedeva, A.M.
TITLE: A Study of Adhesion Phenomena in Rubber to Metal
Bonding With Leykonat Cement. 2. Bonding of Metal
and Un-filled Rubbers
TITLE: Ko lloidnyy zhurnal, 1959, Vol 21, Nr 5, PP 558-563
(USSR)
ABSTRACT: This is a study of the adhesion phenomena observed
in the bonding of unfilled rubbers to metals with the
aid of the isocyanate cement: Leykonat. Table 1
gives a survey of the rubbers and their ingredients.
The rubbers were bonded to metal plates (cleaned with
emery paper Nr 100) during the vulcanization process.
The bonding strength was cha2acterized by the re-
sistance to the separation of the rubber from the
metal, and was ex-,:ressed in kilograms per centimeter
of the width of the specimen (erg/cm 2 The results
Card 1/5 of preliminary experiment-s showed that in a number of

66200
SOV/69-21-5-10/23
A Study of Adhesion Phenomena in Rubber to Metal Bonding with Ley-
konat Cement. 2. Bonding of Metal and Unfilled Rubbers
cases the bonding strength exceeds the strength of
the rubbers themselves, and the rupture has a cohe-
sional character. In order to obtain in all cases
an adhesional character of rubber-metal separation,
the authors reduced the thickness of the cement film.
The experiments revealed however, that this reduction
in thickness affects differently the bonding strength
of rubbers prepared on the basis of different natural
rubbers. The data given in table 2 and graph 1 shows
that with the aid of leykonat cement (on the basis
of triisocyanate triphenyl methane) it is possible
to bond to metal rubbers prepared on the basis of
polar as well as non-polar natural rubbers. In pro-
portion to the growing of the chemical activity and
polarity of the natural rubbers, a growth in the in-
tensity of interaction of the cement film can be
observed .,rith rubbers prepared on the basis of these
natural rubbers, whereas the intensity of interaction
Card 2/5 of the cement film with the metal remains constant. -

66200
A Study of Adhesion Phenomena in Rubber
'.1nat Cement. 2. Bonding of Metal and
SOV/69-21-5-10/'23
to Metal Bonding with Ley-
Unfilled Rubbers
The experimental results however, show that in the
given case the bonding strength does not grow mono-
tonously in proportion to the increase in chemical
activity and polarity of the natural rubbers. After
an initial growth it passes through a maximum, and
subsequently drops. The authors have shown that the
bonding strength of rubber to metal will be high only
in the case of an approximate equality of the intensi-
ties of interaction at the cement-metal and cement-
rubber interfaces. If when one of the surfaces is
in contact with the cement film the intensity of in-
teraction is considerably higher, the bonding strength
of rubber to metal will be low. The authors already
showed in a previous publication CRef 1_7 that there
is an increase in intensity in the interaction of a
cement film with a sandblast-treated metal surface.
Bonding of the mentioned rubbers to such surfaces
Card 3/5 therefore,*will bring about a change. The authors
411~

66200
SOV/69-21-5-10/23
A Study of Adhesion Phenomena in Rubber to Metal Bonding with Ley-
konat Cement. 2. Bonding of Metal and Unfilled Rubbers
ascertained this phenomenon on the basis of two cha-
racteristic examples: bonding of unfilled rubbers pre-
pared from butyl rubber and SKN-40. Whereas the bond-
ing strength of the first rubber did not change, the
bonding strength of the second rubber was increased
by approximately ten times. On the whole, the ex-
periments have shown that the strength of the rubber
to matal bonding, due to the cement film, is controlled
by the ratio of intensities of interaction of the
latter with the contacting surfaces at the cement-
rubber and cement-metal interfaces. In the case of
an approximate equality of both intensities, the
bonding strength will be low. One of the factors af-
fecting the intensity of interaction of the cement
film with the rubber is the reduction in thickness
of the cement film. Such a reduction results in a
drop in the intensity of interaction of film and
Card 4/5 rubber, which differently reflects on the strength
ce__O_~

66200
SOV/69-21-5-10/23
A Study of Adhesion Phenomena in Rubber to Metal Bonding with Ley-
konat Cement. 2. Bonding of Metal and Unfilled Rubbers
of the rubbers to metal bonding, this strength in-
creasing in some cases and decreasing in others. Use
of the isocyanate cement leykonat makes possible a
solid bonding to metal of unfilled resins prepared
on the basis of most of the existing polar and non-
polar natural rubbers. It was ascertained that an
increase of polar groups in natural rubber results
in an increase in the intensity of interaction of
the film with the rubb~-r containing this natural
rubber. There are 2 tables, 2 graphs and 2 Soviet
references.
ASSOCIATION: Nauchno-issledovatel'skiy institut rezinovoy promysh-
lennosti, Moskva (Scientific Research Institute of
the Rubber Industry, Moscow)
SUBMITTED: Oct.2, 1958
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o 69464
S'/069/60/022/02/012/024
D034/DO02
AUTHORS. Medvedeva, A.M , Deryagin, B.V., Zherebkov, S.K.
TITLE.~ Studies of Adhesion X~ Phenomena in Rubber to Metal Bon-
ding With "Leykonat"_f)GJue,3- Interaction Between Sodi-
um Butadiene Rubber and Tripheny1metbame Triisocyanate
PERIODICAL; Kolloidny-y zhurnal, 1960, Vol XXII, Nr 2, p*p 2L7-222
(USSR)
ABSTRACT. The authors report on a study of the interaction
between rubber and "riphenylmethane tr'L'iso,yanate in
solutions and the effect-, of tbe ggg~ anatNon rubber
as a vul.canizing agent. The study was intended to
verify the assumption that the cause of adhesion
at the bou-ndary rubber - "Leykonat" film ("Leykonat"
is a glue representing a 20',11b solution of triphenyl-
methajae triisocya-nate in dichloroethane) consists
in chemica-1. interaction between the rubber and the
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6946h
S/069/60/022/02/012,/n-24
D034/DO02
Studies of Adhesion Phenomena in Rubber to Metal Bonding With
"Leykonat" Glue 3. Interaction Between Sodium Butadiene Rubber
and Triphen,71methane Triisocyanate
isocyanate. Tripbenylmethane triisocyanate can si-
multaneously interact with several rubber molecules,
which necessarily must result in the formation of
a structure similar to the network obtained by vul-
canization. For their investigation the authors used
sodium butadiene rubber of the type RShch. For
the study of the formation of three-dimensional
structures in the solutions a viscometer of the type
PV-7 ~'Ref 3,4 1 was used, which permits investiga-
tion of the properties of highly viscous liquids and
concentrated disperse systems. This device makes
possible to reveal anomalous structural viscosity of
the systems and to determine simultaneously the ul-
timate deformation stress. The design of the device
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691,6h
S/069/60/022/02/012/024
D034/DO02
Studies of Adhesion Phenomena in Rubber to Metal Bonding With
"Leykonat" Glue 3. Interaction Between Sodium Butadiene Rubber
and Triphenylmetha:fie Triisocyanate
and the way to use it for experiments are minutely
described by M.P. Volarovich and L.Ya. Ginzburg
C Refs 4-6.7. The authors' experiments have shown
that the reaction of rubber solutions with a solution
of isocyanate develops in dependence on the rubber
and isocyanate content. The viscosity of 1-291o rubber
solutions, to which during storage isocyanate was
added, shows only little changes. The viscosity of
3-511o rubber solutions increases by several magnitudes
after introduction of the additive. After a certain
time three-dimensional structures can be observed in
these solutions. The study further rt~vealed that iso-
cyanat 8-containing rubber films which were heated
at 143 C assume the properties of vulcanizates as
Card 3/4

69464
S/069/60/022/02/012/024
D034/DOO2
Studies of Adhesion Phenomena in Rubber
"Leykonat" Glue 3. Interaction Between
and Triphenylmethane Triisocyanate
to Metal Bonding With
Sodium Butadiene Rubber
can be seen from their behavior on swelling. On the
whole the investigation confirmed the assumption of
chemical interaction between rubber and isocyanate even
at usual temperatures. A similar chemical interaction
can be assumed, therefore, also in the rubber to 0
metal bonding process during vulcanization at 143-151
G. The authors express their gratitude for help to
M.P. Volarovich. There are 7 graphs and 11 referen-
ces, 10 of which are Soviet and 1 English.
ASSOCIATION: Institut fizicheskoy khimii AN SSSR, Moskva (Institute
of Physical Chemistr,, of the AS USSR, Moscow)
SUBMITTED: September 30, 1959
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